VSS importance

[Jeffery Flanary]

Thanks David, i will probably get a 305 chip in the near future.  Thanks
Again. Jeff

----------
> From: David A. Cooley <n5xmt at bellsouth.net>
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: Re: VSS importance
> Date: Wednesday, September 30, 1998 11:17 PM
> 
> Jeff,
> Pathfinder is made by OTC... It's the new software they run inthe OTC
4000E
> scantool.
> Diacom is a software package for a PC with a cable from the parallel port
> to the ALDL connector of the car...
> The OTC 4000E is about $3000, diacom is about $300.00
> 
> The hunting idle could be from the 350 chip... It's expecting a certain
> amount of air moving through the engine at idle, but it's not seeing
it...
> Makes it harder to adjust the IAC as it's not optimally tuned for the
> smaller displacement.  The 305 chip should help.
> 
> 
> 
> At 09:28 PM 9/30/98 -0400, you wrote:
> >Thanks for the info, a friend of mine has a scan tool called a
"Pathfinder"
> >is that what you mean by a diacom?  If so i'll try that, i think you can
> >put it in limp in mode with that tool.  By the way, when it is in open
loop
> >mode, the engine will idle up and down very slightly, could the 350 chip
be
> >the cause?  I am considering buying a 305 chip.  Thanks alot, this is a
> >good list and i am glad to see that there isn't any of the flaming you
see
> >on some of the other lists.  Jeff
> >
> >----------
> >> From: peter paul fenske <ffnsp955 at bcit.bc.ca>
> >> To: diy_efi at efi332.eng.ohio-state.edu
> >> Subject: Re: VSS importance
> >> Date: Tuesday, September 29, 1998 11:40 PM
> >> 
> >> CHOMP
> >> 
> >> Hi Jeff
> >> 
> >> I might put the truck into backup mode using diacom to see
> >> if it will run. It prob won't but if it runs normally well all
> >> is okay.
> >> 
> >> I would get the calpak from a wrecking yard or a dealer if
> >> I was worried about backup working.
> >> 
> >> take care:peter
> >> 
> >> Ps cal for 350 is a wee bit richer at idle when it drops outa
> >> closed loop. smog might be harder.
> >> 
> >> 
> >> idn't change the calpak.  The computer was in an 88 Astro Van with a
4.3.
> >
> >> >I have heard that it only uses the calpak in limp in mode.  Is this
> >true? 
> >> >Sorry to be so elementary on such a high tech list, but i am just
> >getting
> >> >started. 
> >> >
> >> >				Thanks, Jeff
> >> 
> >> 
> >> CHOMPPEE>
> > 
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>            David Cooley N5XMT           Internet: N5XMT at bellsouth.net
>      Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
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